Frequency and Periodic Time

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Questions and Answers

Which of the following statements correctly describes the relationship between frequency and periodic time of a wave?

  • Frequency and periodic time are randomly related.
  • Frequency and periodic time are inversely proportional. (correct)
  • Frequency and periodic time are not related.
  • Frequency and periodic time are directly proportional.

What happens to the frequency of a wave if its periodic time is doubled?

  • The frequency becomes zero.
  • The frequency is halved. (correct)
  • The frequency is doubled.
  • The frequency remains the same.

If the frequency of a wave is 100 Hz, what is its periodic time?

  • 0.1 s (correct)
  • 1 s
  • 0.01 s
  • 10 s

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Study Notes

Wave Characteristics

  • The relationship between frequency and periodic time of a wave is inverse: as one increases, the other decreases.
  • If the periodic time of a wave is doubled, its frequency is halved.
  • A wave with a frequency of 100 Hz has a periodic time of 0.01 seconds (since frequency x periodic time = 1).

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